CVE-2026-11884 | BDVDB-2026-339451 Detail

Description#

A heap buffer overflow flaw was found in 389 Directory Server. When serializing objectclass definitions, the oc_superior (SUP) field length is omitted from buffer size calculations in read_schema_dse() and schema_oc_to_string(), but the field is still written via strcat(). An attacker with Directory Manager privileges, or a compromised replication supplier, can trigger a server crash by creating objectclasses with long SUP values. This is an incomplete fix variant of CVE-2025-14905.

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History#

1. Version 12026-06-10Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.